Co-combustion of wheat straw and camphor wood with coal slime: Thermal behaviour, kinetics, and gaseous pollutant emission characteristics

被引：81

作者：

Liao Xinjie ^{[1
]}

Zhang Shihong ^{[1
]}

Wang Xincheng ^{[1
]}

Shao Jinai ^{[1
]}

Zhang Xiong ^{[1
]}

Wang Xianhua ^{[1
]}

Yang Haiping ^{[1
]}

Chen Hanping ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, State Key Lab Coal Combust, 1037 Luoyu Rd, Wuhan 430074, Peoples R China

来源：

ENERGY | 2021年 / 234卷

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

Biomass; Coal slime; Co-combustion characteristic; Kinetic; Pollutant emission; COMBUSTION CHARACTERISTICS; TORREFIED BIOMASS; BLENDS; SO2; NOX; OPTIMIZATION; PYROLYSIS; ELEMENTS; ASH; CO2;

D O I：

10.1016/j.energy.2021.121292

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The disposal of coal slime has attracted increasing attention due to its increasing production and consequent environmental pollution. The co-combustion with biomass is a promising method for the treatment of coal slime. However, there are only a few studies on coal slime and biomass co-combustion. This study investigated the co-combustion characteristics and gaseous pollutant emissions of coal slime with camphor wood and wheat straw. The results showed that there are significant interactions between biomass and coal slime during the co-combustion process. The addition of biomass reduced the ignition and burnout temperature and enhanced the combustion stability of the blends. Meanwhile, the addition of biomass inhibited the emission of NO and SO2 from the blends. Moreover, the kinetic analysis showed that the activation energies of biomass char and coal slime combustion stage decreased with increasing biomass content, indicating that biomass's addition improved the combustion reactivity of the blended fuel. The results provide basic knowledge regarding the thermal behaviour and emission characteristics of coal slime and biomass co-combustion. It was established that co-firing is beneficial for the clean and efficient utilisation of coal slime. (C) 2021 Elsevier Ltd. All rights reserved.

引用

页数：11

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